[bpf-next,0/3] bpf: Enable bpf_sk_storage for FENTRY/FEXIT/RAW_TP

Message

Martin KaFai Lau Nov. 6, 2020, 10:07 p.m. UTC

This set is to allow the FENTRY/FEXIT/RAW_TP tracing program to use
bpf_sk_storage.  The first patch is a cleanup.  The last patch is
tests.  The second patch has the required kernel changes to
enable bpf_sk_storage for FENTRY/FEXIT/RAW_TP.

Please see individual patch for details.

Martin KaFai Lau (3):
  bpf: Folding omem_charge() into sk_storage_charge()
  bpf: Allow using bpf_sk_storage in FENTRY/FEXIT/RAW_TP
  bpf: selftest: Use bpf_sk_storage in FENTRY/FEXIT/RAW_TP

 include/net/bpf_sk_storage.h                  |   2 +
 kernel/trace/bpf_trace.c                      |   5 +
 net/core/bpf_sk_storage.c                     |  96 +++++++++++--
 .../bpf/prog_tests/sk_storage_tracing.c       | 135 ++++++++++++++++++
 .../bpf/progs/test_sk_storage_trace_itself.c  |  29 ++++
 .../bpf/progs/test_sk_storage_tracing.c       |  95 ++++++++++++
 6 files changed, 349 insertions(+), 13 deletions(-)
 create mode 100644 tools/testing/selftests/bpf/prog_tests/sk_storage_tracing.c
 create mode 100644 tools/testing/selftests/bpf/progs/test_sk_storage_trace_itself.c
 create mode 100644 tools/testing/selftests/bpf/progs/test_sk_storage_tracing.c